Omega Seamaster Planet Ocean Ultra Deep vs Rolex Sky-Dweller
Ref. 215.30.46.21.01.001 vs Ref. M336938-0006
Comparing the Omega Seamaster Planet Ocean Ultra Deep to the Rolex Sky-Dweller means weighing a significant price difference — is the premium justified? At $11,400 versus $52,350, these two watches serve different segments of the market. Here's how they stack up on specifications, value retention, and investment potential.
Price Comparison
Omega
Seamaster Planet Ocean Ultra Deep
Rolex
Sky-Dweller
At retail, the Omega Seamaster Planet Ocean Ultra Deep is listed at $11,400 while the Rolex Sky-Dweller comes in at $52,350. The Omega Seamaster Planet Ocean Ultra Deep comes in at $40,950 less — more than half the price difference — making it a significantly more accessible option. On the secondary market, the gap widens: the Omega Seamaster Planet Ocean Ultra Deep trades around $9,120 and the Rolex Sky-Dweller around $75,908, a difference of $66,788 favoring the Omega Seamaster Planet Ocean Ultra Deep. Available at 20% below retail and trending downward, this represents a buying opportunity for those comfortable with the current market position. The Rolex Sky-Dweller commands an even stronger market premium of +45.0%, with upward momentum. For investors, the Rolex Sky-Dweller edges ahead with a flip potential score of 7/10 compared to 2/10.
Specifications
| Specification | Omega Seamaster Planet Ocean Ultra Deep | Rolex Sky-Dweller |
|---|---|---|
| Case Diameter | 45.5mm | 42mm |
| Case Thickness | 18.12mm | 14.1mm |
| Case Material | Stainless steel (O-MEGASTEEL) | 18ct yellow gold |
| Bezel | Black ceramic unidirectional rotating bezel with liquidmetal diving scale | 18ct yellow gold, fluted, with Ring Command bezel |
| Crystal | Sapphire crystal with anti-reflective treatment | Sapphire with Cyclops lens |
| Water Resistance | 6000m / 19685ft | 100m / 330ft |
| Movement | Omega Co-Axial Master Chronometer calibre 8912 | Rolex calibre 9001 |
| Movement Type | Automatic | Automatic |
| Power Reserve | 55 hours | 72 hours |
| Bracelet/Strap | Stainless steel bracelet (O-MEGASTEEL) | Jubilee, five-piece links in 18ct yellow gold |
| Clasp | Folding clasp with diver extension | Oysterclasp with Easylink 5mm comfort extension |
| Lug Width | 22mm | 21mm |
Key specification differences stand out between these two: The Omega Seamaster Planet Ocean Ultra Deep leads in water resistance (6000m / 19685ft vs. 100m / 330ft), and the Rolex Sky-Dweller offers longer power reserve at 72 hours, and the Omega Seamaster Planet Ocean Ultra Deep uses Stainless steel (O-MEGASTEEL) while the Rolex Sky-Dweller opts for 18ct yellow gold. With 8 notable spec differences in total, the choice depends on which features matter most to your use case.
Value Per Feature
Per millimeter of case diameter, the Omega Seamaster Planet Ocean Ultra Deep costs $200 versus $1,807 for the Rolex Sky-Dweller. For water resistance, the Omega Seamaster Planet Ocean Ultra Deep delivers better value per meter of depth rating. The Omega Seamaster Planet Ocean Ultra Deep offers more power reserve per dollar spent.
Which Should You Buy?
Choose the Omega Seamaster Planet Ocean Ultra Deep if you value a lower entry price, serious diving capabilities. Go with the Rolex Sky-Dweller if you prioritize stronger flip potential, better value retention. For pure investment potential, the Rolex Sky-Dweller has the edge based on current market data.
Frequently Asked Questions
Which is more affordable, the Omega Seamaster Planet Ocean Ultra Deep or the Rolex Sky-Dweller?
The Omega Seamaster Planet Ocean Ultra Deep is more accessible, priced at $11,400 compared to $52,350.
Which watch is a better investment?
Based on current market data, the Rolex Sky-Dweller has a higher flip potential score of 7/10, suggesting stronger investment returns. However, watch values can fluctuate based on market conditions.
Which holds its value better on the secondary market?
The Rolex Sky-Dweller currently trades at 45.0% above retail, indicating strong value retention on the pre-owned market.
How do the Omega Seamaster Planet Ocean Ultra Deep and Rolex Sky-Dweller compare in size?
The Omega Seamaster Planet Ocean Ultra Deep measures 45.5mm in diameter and 18.12mm thick, while the Rolex Sky-Dweller is 42mm by 14.1mm. Water resistance differs too: 6000m / 19685ft versus 100m / 330ft.
What movements do these watches use?
The Omega Seamaster Planet Ocean Ultra Deep uses the Omega Co-Axial Master Chronometer calibre 8912 with 55 hours power reserve, while the Rolex Sky-Dweller runs on the Rolex calibre 9001 offering 72 hours of power reserve.
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